公开(公告)号：US09127612B2

公开(公告)日：2015-09-08

申请号：US13325531

申请日：2011-12-14

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： B60T7/12 ,  G05D1/00 ,  G06F7/00 ,  G06F17/00 ,  G06F19/00 ,  F02D41/24

CPC分类号： F02D41/2467 ,  F02D41/2429 ,  F02D41/2438 ,  F02D41/2451 ,  F02D41/2461 ,  F02D41/2464 ,  F02D2200/0602 ,  F02D2200/0606

摘要： A characteristics-detecting-portion analyzes a fuel injection condition based on a fuel pressure waveform which represents a variation in a detection value of the fuel pressure sensor and then detects the fuel-injection-characteristic value based on the analyzed fuel injection condition. The detected parameter is learned and stored in a memory in association with a fuel temperature detected by a fuel temperature sensor. A fuel-injection-rate model is established based on the learned detected parameters. A command-fuel-injection start time and a command-fuel-injection period are defined by use of the fuel-injection-rate model and the current fuel temperature.

摘要翻译： 特性检测部分基于表示燃料压力传感器的检测值的变化的燃料压力波形来分析燃料喷射状态，然后基于分析的燃料喷射条件来检测燃料喷射特性值。 与由燃料温度传感器检测到的燃料温度相关联地将所检测的参数学习并存储在存储器中。 基于学习的检测参数建立燃料喷射率模型。 通过使用燃料喷射率模型和当前燃料温度来定义指令燃料喷射开始时间和指令燃料喷射时段。

公开(公告)号：US08977471B2

公开(公告)日：2015-03-10

申请号：US13252436

申请日：2011-10-04

申请人： Kazuhiro Higuchi ,  Koji Ishizuka

发明人： Kazuhiro Higuchi ,  Koji Ishizuka

IPC分类号： F02D41/30 ,  F02D41/00 ,  F02D19/08 ,  F02D19/06

CPC分类号： F02D41/0025 ,  F02D19/0649 ,  F02D19/084 ,  F02D19/088 ,  F02D41/0087 ,  F02D2200/0612 ,  F02D2200/101 ,  Y02T10/36

摘要： A multicylinder engine is provided with a fuel injector for each cylinder. An ECU defines a fuel injection condition of the fuel injector based on an engine driving condition and executes a fuel injection control for each cylinder based on the defined fuel injection condition. The ECU computes an engine speed with respect to each cylinder. While the engine is running, the fuel injection condition is operated in an operation cylinder. A fuel property is determined based on the engine speed of the operation cylinder and an engine speed of a non-operation cylinder.

摘要翻译： 多缸发动机设有用于每个气缸的燃料喷射器。 ECU基于发动机驱动条件来定义燃料喷射器的燃料喷射状态，并且基于所确定的燃料喷射条件对每个气缸执行燃料喷射控制。 ECU计算相对于每个气缸的发动机转速。 当发动机运行时，燃料喷射状态在操作气缸中操作。 基于操作缸的发动机转速和非操作气缸的发动机转速确定燃料特性。

公开(公告)号：US08812215B2

公开(公告)日：2014-08-19

申请号：US13399008

申请日：2012-02-17

申请人： Kouichi Sugiyama ,  Koji Ishizuka

发明人： Kouichi Sugiyama ,  Koji Ishizuka

IPC分类号： F02M37/00

CPC分类号： F02D41/406 ,  F02D41/2096 ,  F02D41/3845 ,  F02D41/3863 ,  F02D2200/0602 ,  F02D2200/0606 ,  Y02T10/44

摘要： A fuel injection system for an internal combustion engine is provided which calculates the quantity of fuel required to bring the pressure in a fuel accumulator into agreement with a target pressure and then control an operation of a high-pressure pump based on the required quantity. Even in the absence of a change in pressure in the accumulator, the system controls the high-pressure pump based on the required quantity. Specifically, the system calculates a feedback fuel quantity required to compensate for a difference between the required quantity and a quantity of the fuel actually supplied to the accumulator, in other words, leans such a quantity difference to correct the required quantity, thus resulting in an enhanced response of the system to control the high-pressure pump to a change in pressure in the accumulator.

摘要翻译： 提供一种用于内燃机的燃料喷射系统，其计算使燃料蓄压器中的压力与目标压力一致所需的燃料量，然后基于所需量控制高压泵的操作。 即使在蓄能器没有压力变化的情况下，系统根据所需的量控制高压泵。 具体地说，系统计算补偿所需量与实际供给蓄能器的燃料量之间的差异所需的反馈燃料量，换句话说，倾斜这样的数量差以校正所需量，从而导致 增强了系统对高压泵的控制，使蓄能器的压力发生变化。

公开(公告)号：US08649955B2

公开(公告)日：2014-02-11

申请号：US12916868

申请日：2010-11-01

申请人： Sumitaka Ikeda ,  Koji Ishizuka ,  Yoshimitsu Takashima ,  Satoru Sasaki ,  Kazuhiro Higuchi ,  Youhei Morimoto ,  Mitsuhiro Nishimura ,  Masahiro Asano

发明人： Sumitaka Ikeda ,  Koji Ishizuka ,  Yoshimitsu Takashima ,  Satoru Sasaki ,  Kazuhiro Higuchi ,  Youhei Morimoto ,  Mitsuhiro Nishimura ,  Masahiro Asano

IPC分类号： G06F17/21

CPC分类号： F02D41/1401 ,  F02D35/02 ,  F02D35/021 ,  F02D35/023 ,  F02D35/028 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/0052 ,  F02D41/1438 ,  F02D41/3836 ,  F02D41/40 ,  F02D2041/1419 ,  F02D2041/1434 ,  F02D2200/025 ,  F02D2200/0625 ,  F02D2250/18 ,  F02P5/045

摘要： An engine control apparatus which may be employed in automotive vehicles. The engine control apparatus is equipped with at least one of a combustion parameter or a controlled variable arithmetic expression. The combustion parameter arithmetic expression defines combustion conditions of the engine needed to achieve required values of engine output-related values such as exhaust emissions. The controlled variable arithmetic expression defines how to operate actuators for an operation of the engine to meet desired combustion conditions of the engine. The use of the combustion parameter or controlled variable arithmetic expression achieves simultaneous agreement of the engine output-related values with required values without mutual interference between combustion parameters associated with the combustion conditions. The engine control apparatus also works to correct target values of fuel injection-related combustion parameters based on a response delay of an air-related combustion parameter, thereby ensuring the accuracy in achieving required values of the engine output-related values.

摘要翻译： 可用于汽车的发动机控制装置。 发动机控制装置配备有燃烧参数或受控变量算术表达式中的至少一个。 燃烧参数算术表达式定义了实现发动机输出相关值（例如废气排放）所需值的发动机所需的燃烧条件。 受控变量算术表达式定义了如何操作致动器以用于发动机的操作以满足发动机的期望燃烧条件。 燃烧参数或受控变量算术表达式的使用实现了发动机输出相关值与所需值的同时一致，而与燃烧条件相关联的燃烧参数之间没有相互干扰。 发动机控制装置还用于基于空气相关燃烧参数的响应延迟来校正燃料喷射相关燃烧参数的目标值，从而确保实现发动机输出相关值的所需值的准确度。

公开(公告)号：US08566005B2

公开(公告)日：2013-10-22

申请号：US12731431

申请日：2010-03-25

申请人： Naoyuki Yamada ,  Koji Ishizuka

发明人： Naoyuki Yamada ,  Koji Ishizuka

IPC分类号： F02D41/30 ,  F02M63/00

CPC分类号： F02D41/401 ,  F02D2200/0602 ,  F02D2250/04 ,  F02M47/027 ,  F02M63/0225 ,  Y02T10/44

摘要： An actual maximum fuel injection rate is computed based on a falling waveform and a rising waveform of the fuel pressure. The falling waveform represents the fuel pressure detected by a fuel sensor during a period in which the fuel pressure increases due to a fuel injection rate decrease. The rising waveform represents the fuel pressure detected by the fuel sensor during a period in which the fuel pressure decreases due to a fuel injection rate increase. The falling waveform and the rising waveform are modeled by modeling functions. A reference pressure is computed based on pressure during a specified time period before the falling waveform is generated. An intersection pressure is computed, at which the straight lines expressed by the modeling functions intersect to each other. The maximum fuel injection rate is computed based on a fuel pressure drop from the reference pressure to the intersection pressure.

摘要翻译： 基于下降波形和燃料压力的上升波形来计算实际的最大燃料喷射率。 下降波形表示在燃料压力由于燃料喷射速率降低而增加的时段期间由燃料传感器检测到的燃料压力。 上升波形表示燃料传感器在由于燃料喷射率增加而燃料压力降低的时段期间检测到的燃料压力。 下降波形和上升波形由建模功能建模。 基于在产生下降波形之前的指定时间段内的压力来计算参考压力。 计算交叉压力，在该交点压力下，由建模功能表达的直线彼此相交。 基于从参考压力到交叉口压力的燃料压降来计算最大燃料喷射速率。

公开(公告)号：US08539935B2

公开(公告)日：2013-09-24

申请号：US12187638

申请日：2008-08-07

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02M51/00 ,  G06F19/00 ,  G06G7/70

CPC分类号： F02D41/3836 ,  F02D41/221 ,  F02D41/2435 ,  F02D41/2467 ,  F02D41/247 ,  F02D2200/0602 ,  F02D2250/04

摘要： A fuel injection device includes a fuel injection valve for injecting fuel, which is distributed from a pressure-accumulation vessel. A pressure sensor is located in a fuel passage, which extends from the pressure-accumulation vessel to a nozzle hole. The pressure sensor is located closer to the nozzle hole than the pressure-accumulation vessel. A storage unit stores individual difference information obtained by an examination. The individual difference information indicates an injection characteristic of the fuel injection valve and indicates at least one of an injection response time delay between an injection start point and a time point, at which a fluctuation is caused by the start of fuel injection in detected pressure of the pressure sensor, and a parameter for calculating the injection response time delay.

摘要翻译： 燃料喷射装置包括从蓄压容器分配的用于喷射燃料的燃料喷射阀。 压力传感器位于从蓄压容器延伸到喷嘴孔的燃料通道中。 压力传感器比压力蓄积容器更靠近喷嘴孔。 存储单元存储通过检查获得的个体差异信息。 个体差异信息表示燃料喷射阀的喷射特性，并且表示喷射开始点和时间点之间的喷射响应时间延迟中的至少一个，其中由检测到的压力下的燃料喷射开始引起波动 压力传感器和用于计算喷射响应时间延迟的参数。

公开(公告)号：US08306719B2

公开(公告)日：2012-11-06

申请号：US12486038

申请日：2009-06-17

申请人： Koji Ishizuka

发明人： Koji Ishizuka

IPC分类号： G06F19/00

CPC分类号： F02D43/02 ,  F02D41/2448 ,  F02D41/2474 ,  F02D41/2477 ,  F02D41/2483

摘要： A learning device changes each of multiple parameters to an increased side and to a decreased side with respect to a reference value set for each of the multiple parameters. The learning device calculates an approximation degree for each combination of the changes of the multiple parameters. The learning device performs update by using the combination of the changes providing the highest approximation degree among the approximation degrees as the combination of the updated reference values when an update end condition is not satisfied. The update end condition is a condition that the approximation degree at the reference values is higher than any of the approximation degrees after the change. The learning device decides the reference values as learning values of the multiple parameters when the update end condition is satisfied.

摘要翻译： 学习装置将多个参数中的每一个相对于针对多个参数中的每个参数设置的参考值将增加的一侧和减小的一侧改变。 学习装置计算多个参数的变化的每个组合的近似度。 当更新结束条件不满足时，学习装置通过使用提供近似度之间的最高近似度的变化的组合作为更新的参考值的组合来执行更新。 更新结束条件是参考值的近似度高于变化后的任何近似度的条件。 当满足更新结束条件时，学习装置将参考值确定为多个参数的学习值。

公开(公告)号：US08100112B2

公开(公告)日：2012-01-24

申请号：US12235917

申请日：2008-09-23

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02D41/30

CPC分类号： F02M57/005 ,  F02D41/123 ,  F02D41/2441 ,  F02D41/2451 ,  F02D41/40 ,  Y02T10/44

摘要： A variation waveform of fuel pressure is obtained by use of a fuel pressure sensor which detects pressure of fuel supplied to an injector. A quantity of fuel supplied to the injector is estimated based on a waveform of the detected pressure that is greater than a reference value due to a fuel pumping, in the obtained variation waveform. Especially, in a case that the fuel pressure sensor is provided to each of a plurality of injectors, it is desirable to obtain the variation waveform based on the output of the fuel pressure sensor provided to a cylinder in which no fuel injection is currently performed.

摘要翻译： 通过使用检测供给到喷射器的燃料的压力的燃料压力传感器来获得燃料压力的变化波形。 在获得的变化波形中，基于由于燃料泵送而大于参考值的检测压力的波形来估计供应到喷射器的燃料量。 特别地，在将燃料压力传感器设置在多个喷射器中的情况下，希望基于设置在当前不进行燃料喷射的气缸的燃料压力传感器的输出而获得变化波形。

公开(公告)号：US07865293B2

公开(公告)日：2011-01-04

申请号：US12179235

申请日：2008-07-24

申请人： Koji Ishizuka ,  Kenichiro Nakata

发明人： Koji Ishizuka ,  Kenichiro Nakata

IPC分类号： F02M51/00 ,  F02M51/06

CPC分类号： F02D41/40 ,  F02D2200/0602 ,  F02M57/005 ,  Y02T10/44

摘要： A fuel injection control device (ECU) for controlling injection supply of fuel to a target engine includes a program for sequentially sensing fuel pressure fluctuating with injection of a predetermined injector of each cylinder of a multi-cylinder engine based on an output of a fuel pressure sensor, a program for detecting a diagram as a profile of a transition of a fuel quantity injected from the injector per unit time (i.e., an injection rate) at a present time based on the sequentially sensed fuel pressure transition, and a program for varying an injection command to the injector based on the diagram that is the profile of the injection rate transition and that is detected by the latter program and a predetermined basic diagram such that the diagram as the actual profile of the injection rate transition belongs to the basic diagram.

摘要翻译： 一种用于控制向目标发动机的燃料喷射供应的燃料喷射控制装置（ECU）包括用于根据燃料压力的输出依次感测燃料压力波动的程序，其中喷射多气缸发动机的每个气缸的预定喷射器 传感器，用于基于依次感测到的​​燃料压力转换，将当前时间内从喷射器喷射的燃料量的过渡（即，喷射速率）的曲线图检测到的程序，以及用于变化的程序 基于作为喷射速率转换的轮廓的图并且由后一程序检测的喷射指令和预定的基本图，使得作为喷射率转换的实际轮廓的图属于基本图 。

公开(公告)号：US20100319443A1

公开(公告)日：2010-12-23

申请号：US12817286

申请日：2010-06-17

申请人： Kenichiro NAKATA ,  Koji Ishizuka

发明人： Kenichiro NAKATA ,  Koji Ishizuka

IPC分类号： F02M65/00 ,  F02D41/30

CPC分类号： F02D41/28 ,  F02D41/008 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02D2400/08 ,  F02M57/005

摘要： A fuel temperature sensing device has fuel temperature sensors provided to respective cylinders for sensing fuel temperature. Each fuel temperature sensor is arranged in a position closer to an injection hole than to a pressure accumulator in a fuel passage extending from the pressure accumulator to the injection hole. The device has an average value calculating section for calculating an average value of fuel temperature sensing values sensed with the fuel temperature sensors of the respective cylinders. The device has a deviation calculating section for calculating deviations between the average value and the fuel temperature sensing values of the respective fuel temperature sensors. The device has a correcting section for correcting the fuel temperature sensing value of each fuel temperature sensor to approximate the deviation to zero for each fuel temperature sensor.

摘要翻译： 燃料温度感测装置具有设置在各个气缸上的用于检测燃料温度的燃料温度传感器。 每个燃料温度传感器布置在比从蓄压器延伸到喷射孔的燃料通道中的压力蓄积器更靠近喷射孔的位置。 该装置具有用于计算用各个气缸的燃料温度传感器感测的燃料温度感测值的平均值的平均值计算部。 该装置具有用于计算各个燃料温度传感器的平均值和燃料温度感测值之间的偏差的偏差计算部。 该装置具有用于校正每个燃料温度传感器的燃料温度感测值以将每个燃料温度传感器的偏差近似为零的校正部分。